Coupling element.



F. MACD- FAIRGRIEVE.

.COUPLING ELEMENT, APPLICATION HLED'JUNE 1s, I9i6.

Patented May1'5, 1917.

275075 50.. Pnomumm, wasum NITED FETATEB PATENT FREDERICK MACDONALDFAIBGBIEVE, 0F TORONTO, ONTARIO, CANADA.

COUPLING ELEMENT.

Application filed June 16, 1916.

To all whom it 112 my concern Be it known that I, FREDERICK MAcDoN- ALI)FAIRGRIEVE, residing in the city of To ronto, county of York, Provinceof Ontario, Dominion of Canada, a subject of the King of Great Britain,have invented certain new and useful Improvements in Coupling Elements,of which the following is a specification.

My invention relates to improvements in coupling elements, and relatesmore particularly to the production of a hinge element whereby handlesand like articles may be coupled to a door or other member, and theobject of my invention is to manufacture a coupling element from sheetmetal in such a manner that the pivotal element will form an integralpart of said element, and the construction of my preferred form ofinvention will be hereinafter particularly set forth, as well as amodification thereof, and what I claim as new will be pointed out in theclaims forming part of this speoification.

Figure 1 is a perspective view of my preferred form of coupling elementas stamped out; Fig. 2 is a perspective view of this preferred formshowing the element buckled to permit of the union therewith of themember to be hinged or coupled thereto; Fig. 3 is a verticalcross-section through the 'front of an oven formin art of a as stove,showing my coupling element used to hinge a handle to the door of thesaid gas stove, and Fig. 4 is perspective view of a modified form of mycoupling element, showing the same adapted to the coupling of twomembers together, disposed substan tially at right angles each to theother.

In the drawings, like characters of reference indicate correspondingparts in each figure.

In putting my invention into practice, I take a piece A of sheet metalof the desired gage. and stamp thereout of two holes B which are spacedapart and in alinement as illustrated in Fig. 1. Preferably at the sametime the holes B are stamped out, I cut through the stock along the lineC for the length of the piece of stock D, thus forming a tongue whichperforms the function of a pintle. In order to couple a member to thecoupling element just described, it is necessary to buckle this couplingelement along the line oa S0 buckling Specification of Letters Patent.

Patented May 15, 1917.

Serial No. 104,106. I

the coupling element forms a clear passage E between the free end of thetongue D and the body-portion of the coupling element, thus enabling thehead F of the arm G to be passed through the said passage. The head F isprovided with a hole H, and as this head is passed into the passage E,the same is'slipped over the tongue D. The coupling element is thenpressed back into the position illustrated in Fig. 1, thus preventingthe removal of the arm G therefrom. The arm G in Fig. 3 is shown associated with a coupling element in order to show how this arm and the barI carried thereby (which bar at its opposite end supports another arm Gnot shown) may be hinged to the door J of the oven K. The lip L of thehead F will engage with the bar M carried by the oven to retain the doorJ closed. The holes B permit of the free movement of the head F forengaging and disengaging purposes in respect of the bar M. In thisshowing, the tongue D is of sufficient size to easily fit the hole Ahole 6 is formed in the door J to permit of the placing of the arm G.

In Fig. 4, I illustrate a modified form of my invention. 2 represents ametal plate in which have been formed the holes B and the tongue D 3 isa metal plate provided with a slot a through which passes the tongue Dthus coupling the plates 2 and 3 together substantially in a position atright angles to eachother. From the foregoing part of the specification,without further description it will be understood how the plates 2 and 3are coupled together. From the disclosure made in Fig. t particularly,it will be understood that my coupling element and the method ofemploying the same may be made use of in various fields, for instance,in con nection with mechanical toys. The slot 4: in Fig. 4 is shaped toconform to the tongue D and therefore it will be understood that therewill be no movement of the plate 3 on the tongue D At the same time theholes B are formed, if desired I may form the holes 5 in the preferredform of coupling element through which the attaching means thereforpasses. The shape of the coupling element is of course, immaterial, aswill be understood.

While I have described what I consider to be the best embodiment of myinvention, I do not confine myself to the construction herein shown anddescribed, except in so far as that may be necessary by reason of theprior art and the terms of my claims.

One of the principal objects of my invention is to reduce the cost ofmanufacture of hinges for door handles used particularly in connectionwith gas stoves, and it will be understood by one skilled in this art,that my disclosure can be manufactured and attached much more cheaplythan any other similar coupling element with which I am aequainted.

From the foregoing specification, together with the disclosures made bythe drawings, it will be understood that the tongue D, together with theholes B, must essentially be placed within the perimeter of the couplingelement.

l/Vhat I claim as my invention is:

1. As a new article of manufacture a coupling element within theperimeter of which has been stamped tWo alined holes, and a tonguepositioned between said holes, the top and bottom edges of which aresubstantially parallel to each other; one side of said tongue beingsevered from said coupling element, but normally resting substantiallyin eontact therewith.

2. The combination with a coupling ele ment provided with two alinedholes separated by a tongue, the top and bottom edges of which aresubstantially parallel to each other, one end of said tongue beingsevered from said coupling element, which element is designed to bebuckled on a line passing substantially centrally through said holes andtongue, to provide a passageway through said coupling element, of anelement provided with a hole passed into said passageway and coupled tosaid tongue by means of 49 Copies of this patent may be obtained forfive cents each, by addressing the Commissioner of Patents,

Washington, D. O.

